Settling-cone.



W. MAIN,

SETTLING GONE. APPLICATION FILED MAR. 1, 1912.

2 QHEBTSSHEET 1.

1,065,542, Patented June 24, 1913.

WITNESS 's I INVENTOR 0M JZM ,Wn

Mwrromva rs W. MAIN.

SBTTLING CONE.

APPLICATION FILED MAB. 1, 1912. 1,065,542. Patented June 24, 1913.

2 SHEETS-SHEET 2.

I I" I NM W Y INVENTOR WITNESSES W N: R 3 BY -1 ATTORNEYS "tions Relating to Settling-Cones, of which ings.

in Figs. 1 and 3, the hoppcred settling cham- WILLIAM MAIN, OF PIERMONT, NEW YORK.

'sE'rTLING-coNE.

Application filed March 1. 1912. Serial No. 680,991.

Specification of Letters Patent.

Patent-eoifune 24, 1913.

To all whom it may concern: 3 Be it known that I, lV LLIAM MAIN, citi- 'zen of the United States, and resident .of Piermont, .Rockland count-y, New. York, have made certain new and useful Inventhe following is a specification, taken in connection 'with the accompanying draw-.

vThis invention relates especially to settling'cones or deep settling ore classifiers in which a suitably hoppered settling chamber is-provided with a distributing device to supply the fine water suspended material thereto, the finer particles being carried off by an overflow connected with the upper part of the chamber. The larger and heavier particles settle down through the chamber towardits throat which may be provided with an exterior thread and with a cooperating adjusting: nut serving to support a valve plate etachably connected thereto and thus provide an annular discharge aperture around the throat to allow the substantially uniform radial discharge of the more solid material therefrom. A replaceable valve block may be mounted on the valve plate to form the discharge orifice and may be releasably mounted in a pivoted or other frameso as to efie'ct emergency release and give free access .to the throat in case of clogging.

In the illustrative embodiments of this invention shownin the drawings, Figure 1 is a side elevation partly in section of one form of classifier, Fig. 2 is a similar view of another form, Fig. 3 is an enlarged sectional view of the'discharge throat and 00 operating parts 01% the classifier shown in Fig. 1, Fig. 4 is a horizontalsect-ion along the line 44 of Fig. 5 which shows in vertical section another discharge valve arrangement, Fig. 6 is a vertical section through still another adjustable discharge valve device, Fig. 7 shows in enlarged vertical section the form of discharge valve device of Fig. 2 and Fig. 8 is a horizontal section thereof taken along the line 8-8 of Fig. 7. I

In the illustrative form of classifier shown her A may be of any suitable form and material, and may for convenience be made of sheet metal in substantially conical form and provided at its lower end with a suitable reinforcing collar A connected thereto in any desired way as by the rivets A, and

also with a suitable nipple such as S which A"- the lower portion A of which is prefy erably inclined so as to direct the overflow received from any suitable overflow openings in the upper part of the chamber through a suitable overflow discharge such as N. Any suitable distributing device or' box 0 may be installed in connectionwith the settling chamber and provided, if desired, with a coarse mesh screen M so as to separate large lumps of.material and prop perly distribute the water and suspended,

matter supplied to the chamber, the box having, if desired, the depending portion O below the screen to assist in downwardly directing the material. This material may be mixed sands, slimes orfothcr material...

suspended in a large amount of water and delivered for instance, from various reduc-.

ing machinery, such as stamps, by which the wet crushing of,ores and minerals is effected. Thematerial supplied to the classifier i may contain as much as eighty-five to ninety per cent. of water which retains 1n suspenslon and earn -s off over the upper edge of the classifier i itothe overflow, for instance,

the lighter particles, while. the coarserand heavier particles settle rapidly and while still suspended or incorporated in a rela tively smaller proportion of water may-be discharged through the lower discharge throat with whicha valve of any desired description may cooperate so asto preferahlv form an annular discharge orifice of adjustable size around the throat through which the coarser material, containing thirty per cent. or so of water may be substantially uniformly discharged in a radial direction. Under normal conditions the heavier particles form a somewhat-compact mass resembling quick-sand, below the strong currents in the upper part of the chamber and if the discharge of the coarser material from the lower discharge throat decreases for any reason, such as clogging,

the heavier particles tend to form a comnaet. firm mass which must be removed be fore the reguiar operation of the classifier can continue. in order to secure the martimum thickening effect or the maximum sand which must regularly settle and be dis-' charged since if stagnation occurs, for even a short time, firm sand banks are liable to form and clog the apparatus. The thickened sand or pulpshould slide uniformly her which should be freefrom obstructions or partitions for this reason and also to facilitate cleaning in case clogging occurs.

The valve may be mountedin connection with the discharge throat in any desired. 'way, as by providing a suitable adjusting g with nut D somewhat loosely cooperatin the threads of the discharge throat and supporting a series of spaced connectors B which may have their upper ends connected to the nut as byriveting then! thereto. The: lower ends of these csnnectors are prefer ably detachably connected with a suitable" valve plate W and this may be conveniently accomplished by passing the threaded lower ends of the connectors'through suitable holesin the valve plate and securing the plate to the connectors by n'uts such as J. .5 If desired, the valve may be releasably mounted in connection with the discharge throat by mounting the removable valve block Wj ifn the frame H which may bemounted' on'fthe valve plate W in any desired way as by the'; pivot pin H passing through the frameandj suitable depending lugs -of= the valveplate. Any means such as theidepending operating handle H connected to the'frame may bri'n the frame and valve block into the operating:

position shown in Fig. 3and anydisenga ablemeans such as the pivotedelatch may be usedto hold the valve in this normal position. The latch may be pivoted about the pin H in suitable dependin lugs on the valve plate and may be provide with a suitable heel or projection H adapted to cooperate with the valve plate and prevent undesirable inward swinging of the latch;

On releasing this latch the valve and frame are released and swing downward thus giving free iipward access to the throat and in, case of clogging a bar or other cleaning in-' strument such as a water nozzle may be in serted into the throat and quickly clear the same so as to restore the classifier to normal. operating condition. When the valve block is swung upward into operating position by the handle H the inclined lug H engages the inclined portion H of the latch and swings it upward so as to-allow the parts to come into locking engagement firmly hold ing the valve block in position and providing an annular discharge orifice from which the thickened pulp may-be substantially unirformly radially discharged-,frcm-the throat of the deep settling classifier. The size of this annular discharge orifice may, of course;

of theivlv" ve effected in this way makes it possible-for the rator to move 'or-shake thtivaiff 'zeasby-sha ing the operatin handle 7 so agtd promote the discharge of te' inatedown the inner surface of the settling chamriaLYwhen-iit tends to clog. The coarse parwhicli-i inaysbii removed and repliiced by a timcto tim'eand for similar reasons a'" suitable replaceable wearing ma be interposed above the If ,desired, also a suitable valve v plate splash .'inay,"be rovidedand conveniently mounted. in c f charg'diifibifFb l 'v suspending-it upon the 'threadetf S so hat ltr can be liftedto thed!" extent; allow inspection of 'the'parts wh i'lesifa ble; For some 1 'ection with the dispurposes" a of "valve is desirable as. for instance; :irfl'casepof breakage of of the connected Such as VW may the pivoted arable or any g oi'thatthe classifier may be maintaiiicdi thef'connectors may "ri eted to the valve plate WE-gin 'jvhich the detachable: valve block W may be .moiiiiti5dsd"as to be held in cooperation" Lwith?thefflischarge throat "and form aii'annular discharge orificejof the desired sizetherewith. w w 2'sho'wsa. distributing device of somewhat different construction and as shown more in detailin 7 andv 8 the valve may in this instance be' in the form of a valve block W held by suitable means s'iich as the pin S upon'the end S of the adjusting screw S which is indicated as having threaded engagement with the valve plate W. This valve plate may be mounted in any desired way in connection with the discharge throat as by the nuts J which secure it to suitable connectors B which may be screwed or 'otherwise connected to a flange such as D on the'reinforcing collar A for instance. By turning the handle H of the screw S" the valve blockis adjusted with respectto the discharge throat and an mnular discharge orifice of the desired size secured.

o tinnectors by the soperation with; such facilities as madiiysecured even. -"under mining camp" Eoiiditions. "Figx 6 shows another form o lve device in which I cotiperating with said settling Letters Patent is set forth in the appended claims' 1. In deep settling ore classifiers, a hoppered settlingchamber, a distributing device to supply material thereto, an overflow chamber, an exteriorly threaded discharge throat at the lower end of said settling chamber, an adjusting nut cooperating with the thread on said throat, a series of spaced connectors on said nut a valve plate detachably secured to said connectors, a pivoted frame mounted on said valve plate and having a downwardly projecting operating handle, a replaceable valve block mounted in said frame to normally cooperate with said throat and a pivoted latch cooperating with said frame to normally and releasably hold said block in operative position and form an annular discharge orifice around said throat and allow the emergency release of said block and frame to ive free access to said throat.

2. In dgep settling ore classifiers, a settling chamber, a distributing device to supply material thereto, an overflow cooperating with said settling chamber, threaded adjusting means on said settling chamber, a discharge throat at the lower end of said settling chamber, an adjusting nut cooperating with the threaded means on said settling chamber, a series of spaced connectors on said nut, a valve plate secured to said connectors, a pivoted frame mounted on said valve plate and.having a projecting operating handle, a valve block in said frame to normally cooperate with said throat and a latch cotiperating with said frame to normally and releasably hold said block in operative position and form a discharge orifice for said throat and allow the emergency release of said block and frame to give free access upward to said'throat.

3. In deep settling ore classifiers, a hoppered settling chamber, an upper discharge therefor, cooperating supplying means for sup lying fine material suspended in water to tie upper part of said settling chamber, a discharge throat adjacent the lower end of said settling chamber. to which material from said supplying means has unobstructed access while undisturbedly settling, a valve device cooperating with said throat to form a normally constant annular orifice to effect the substantially uniform radially outward discharge of the more solid material from said throat and releasing means to manually effect the instantaneous emergency release of said valve device.

4. In deep settling ore classifiers, a hoppered settling chamber, an upper discharge therefor, cooperating means for supplying fine material suspended in water to said settling chamber, a discharge throat adjacent the lower end of said settling chamber, a loosely mounted valve device cooperating with said throat to form an annular orifice for the discharge of the more solid material from said throat and means to manually shake said valve device during operation to promote discharge of material therefrom.

' \VILLIAM MAIN.

\V-itnesses HARRY L. DUNCAN, JESSIE B. KAY. 

